Add catalogitem update endpoint to public api (#418)

* Initial update endpoint working

* Updated CatalogItem to support more updates; added tests

* Got MediatR domain events working to check for duplicate item names

* Adding reference link

* Remove domain events spike code

* clean up usings

src/ApplicationCore/ApplicationCore.csproj

@@ -8,6 +8,7 @@
 	<ItemGroup>
 		<PackageReference Include="Ardalis.GuardClauses" Version="1.5.0" />
 		<PackageReference Include="Ardalis.Specification" Version="3.0.0" />
+		<PackageReference Include="MediatR" Version="8.0.2" />
 		<PackageReference Include="System.Security.Claims" Version="4.3.0" />
 		<PackageReference Include="System.Text.Json" Version="4.7.2" />
 	</ItemGroup>

src/ApplicationCore/Entities/CatalogItem.cs

@@ -1,8 +1,11 @@
 using Ardalis.GuardClauses;
 using Microsoft.eShopWeb.ApplicationCore.Interfaces;
+using System.Collections.Generic;
 
 namespace Microsoft.eShopWeb.ApplicationCore.Entities
 {
+
+
     public class CatalogItem : BaseEntity, IAggregateRoot
     {
         public string Name { get; private set; }
@@ -14,7 +17,12 @@ namespace Microsoft.eShopWeb.ApplicationCore.Entities
         public int CatalogBrandId { get; private set; }
         public CatalogBrand CatalogBrand { get; private set; }
 
-        public CatalogItem(int catalogTypeId, int catalogBrandId, string description, string name, decimal price, string pictureUri)
+        public CatalogItem(int catalogTypeId, 
+            int catalogBrandId, 
+            string description, 
+            string name, 
+            decimal price, 
+            string pictureUri)
         {
             CatalogTypeId = catalogTypeId;
             CatalogBrandId = catalogBrandId;
@@ -24,11 +32,27 @@ namespace Microsoft.eShopWeb.ApplicationCore.Entities
             PictureUri = pictureUri;
         }
 
-        public void Update(string name, decimal price)
+        public void UpdateDetails(string name, string description, decimal price)
         {
             Guard.Against.NullOrEmpty(name, nameof(name));
+            Guard.Against.NullOrEmpty(description, nameof(description));
+            Guard.Against.NegativeOrZero(price, nameof(price));
+
             Name = name;
+            Description = description;
             Price = price;
         }
+
+        public void UpdateBrand(int catalogBrandId)
+        {
+            Guard.Against.Zero(catalogBrandId, nameof(catalogBrandId));
+            CatalogBrandId = catalogBrandId;
+        }
+
+        public void UpdateType(int catalogTypeId)
+        {
+            Guard.Against.Zero(catalogTypeId, nameof(catalogTypeId));
+            CatalogTypeId = catalogTypeId;
+        }
     }
 }

src/ApplicationCore/Exceptions/DuplicateCatalogItemNameException.cs

@@ -0,0 +1,14 @@
+using System;
+
+namespace Microsoft.eShopWeb.ApplicationCore.Exceptions
+{
+    public class DuplicateCatalogItemNameException : Exception
+    {
+        public DuplicateCatalogItemNameException(string message, int duplicateItemId) : base(message)
+        {
+            DuplicateItemId = duplicateItemId;
+        }
+
+        public int DuplicateItemId { get; }
+    }
+}